In order to answer this question, you’ll need to watch the Global Sea Level Chan

Question

In order to answer this question, you’ll need to watch the Global Sea Level Change Animation. Click here to access it. (http://wwnorton.com/college/geo/earth5/animations/Sea_Level/index.html)

Select the statements that are true regarding sea floor spreading.

Choose one or more:

A. Faster-growing mid-ocean ridges have greater volumes than do more slowly growing ones.

B. Faster-growing mid-ocean ridges displace more seawater than do more slowly growing ones.

C. Seafloor spreading rates are always constant.

D. Faster-growing mid-ocean ridges create larger ocean basins and thus lower sea level.

Explanation / Answer

According to the given link, the true statements regarding the sea floor spreading are :

A. Faster growing mid ocean ridges have greater volumes than do more slowly growing ones

B. Faster growing mid ocean ridges displace more sea water than do more slowly growing ones.

The rest are wrong. Sea floor spreading rates are not always constant and faster growing mid ocean ridges displace more sea water than slower growing ones and thus increases sea level.

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